Home / 123,890.36-170,968.64-67,301.73

Finding the Fourth Proportional to 123,890.36, 170,968.64 and 67,301.73

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Solution

The fourth proportional to 123,890.36, 170,968.64 and 67,301.73 is: 92,876.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,890.36 : 170,968.64 = 67,301.73 : x
  2. Step 2: Convert to fraction form
    123,890.36/170,968.64 = 67,301.73/x
  3. Step 3: Cross multiply
    123,890.36x = 170,968.64 × 67,301.73
  4. Step 4: Simplify right side
    123,890.36x = 11,506,484,911.24
  5. Step 5: Solve for x
    x = 11,506,484,911.24/123,890.36
  6. Step 6: Final answer
    x = 92,876.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.